Coated enzyme-containing catalyst
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United States of America Patent
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Jul 24, 2007
Grant Date -
Apr 29, 2004
app pub date -
Jun 22, 2001
filing date -
Jun 30, 2000
priority date (Note) -
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Abstract
An enzymatic catalyst in the granular form which is non-dispersible in water comprising an inner core provided with a coating which coating comprises an enzymatic material characterised in that the coating has a thickness of from 30 to 400 microns and the ratio of the size of the core to the thickness of the coating is from 2 to 20. A method for the preparation of the catalyst and the use of the catalyst in the conversion of 2-hydroxy-4-methylthio butyronitrile to ammonium 2-hydroxy-4-methylthio butanoate is also claimed.
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